Method and apparatus for mitigating inter-channel interference in adaptive array systems
First Claim
1. In an antenna array system, a method for reducing inter-channel interference, the method comprising:
- providing a first channel on which to transmit a downlink signal to a first remote user terminal;
obtaining the spatial characteristic of a second remote user terminal that employs a second channel for communication, wherein the second remote user terminal is susceptible to interference on the second channel, the interference caused by the downlink signal; and
based on the spatial characteristic, generating an interference mitigated region at the location of the second remote user terminal when transmitting the downlink signal on the first channel.
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Accused Products
Abstract
A method and apparatus for mitigating co-channel and inter-channel interference in an antenna array system. According to one aspect, the channel-select filter of a base station or other communication device is modified to detect inter-channel interference on at least one non-primary channel when the transmitter is communicating with a remote user terminal on a primary channel. The spatial characteristic of the interference is determined and used to obtain a weight that mitigates the inter-channel interference. According to another aspect, the spatial characteristic of co-channel and/or inter-channel ghost signal interference caused by a transmitter is determined and used to mitigate the effects of such interference.
15 Citations
16 Claims
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1. In an antenna array system, a method for reducing inter-channel interference, the method comprising:
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providing a first channel on which to transmit a downlink signal to a first remote user terminal;
obtaining the spatial characteristic of a second remote user terminal that employs a second channel for communication, wherein the second remote user terminal is susceptible to interference on the second channel, the interference caused by the downlink signal; and
based on the spatial characteristic, generating an interference mitigated region at the location of the second remote user terminal when transmitting the downlink signal on the first channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification